Separable fastener



March 13, 1928.

J. DRAHER ET AL SEPARABLE FASTENER Filed Jan.6, 1927 Patented Mar. 13, 1928.

UNITED STATES PATENT OFFICE.

JOHN DRAHER AND TO THE STERLING- TION.

ADOLPH J. KBIEGER, OF WATERBURY, CONNECTICUT, ASSIGNOBS NOVELTY MFG. (10., F WATEBB'UBY, CONNECTICUT, A CORPORA- SEPARAIBLE FASTENEB.

Application filed January 6, 1927. Serial 110. 159,882.

This invention relates to an improvement in separable fasteners, and particularly to that type which consists of complementary, interlocking members respectively securedto the edges of parts to be connected together with a slide having diverging channels through which the edges of the strips of interlocking members. pass and by which they are moved into and out of interlocking engagement. One object of the invention is tb form the members so that theywill remain locked when brought together, and another object of the invention is to so construct the slide with an integral guide for the finger-piece, which may be moved from end to end, and the invention consists in the construction as will be hereinafter described and particularly recited in the claims.

In the accompanying drawings:-

Fig. 1 is a planview illustrating our improved separable fasteners;

Fig. 2 is a lan view, partly in section, of the members interlocked;

Fig. 3 is a plan view of one of the interlocking members detached;

Fig. 4 is a side view of the same;

Fig. 5 is an end view of the same;

6 is a longitudinal sectional view of the same on an enlarged scale;

Fig. 7 is a plan view of the slide detached;

Fig. 8 is an edge view of the same;

Fig. 9 is an end view thereof; and

Fig. 10 is a plan view of the blank from which the slide is formed.

In carrying out our invention, we employ locking-members 15 struck up from sheetmetal and preferably provided with gripping-teeth 16 for engagement with flexible stringers 24 and with an extension 17 having a finge upward therefrom forming a r 18 struck corresponding socket 34. This finger has a and straight" sides 20,

straight inner edge 19 and the inner end of the finger is deflected so that its iliner surface is in line with the outer surface of the extension 17 The complementary members 21 are formed in duplicates of the members described, so that the fingers 22 of the members 21 engage with the members 15, and the fingers 18 of the members 15 engage with the members 21, and asthe openings formed by the fingers of one member have parallel sides corresponding to the parallel sides of the adjacent members and as the-fingers of both members have straight edges, a positive en agement between-the two members is secur These members are attached to the edges of the flexible stringers 23 and 24. in the usual manner. The slide 25 is struck up from sheetmetal and consists of two face-plates 26 and 27 formed with angular edges 28 and connected together by a neck 29 which, when the plates are folded together, will form a spacing-bar between them. The member 26 is formed at its lower end with an integral strap 30 having a- T-end 31 which, when the strap is turned upward over the outer surface of the plate 26, will permit the ends of the T 31' to be folded around the neck 29,

but before this is done, the two plates are connected together by a rivet 32. The inturned ends of the T 31 complete the guideways through the slide. It will be understood that the flanges of the plates extend overv the inner ends of the locking-members in the usual way. Sliding on the strap 30 is a finger-piece 33 which is free to move from one end to the other. The slide, therefore, consists of only three pieces. The function and operation of the parts is too well known to require further description.

With this construction, the parts can be produced at very low cost for manufacture, the slide moves freely over the interlockingmembers, and those members, when interlocked, are firmly held together, and are not liable to be disengaged by the distortion of the article to which the fasteners are applied.

We claim: A separable fastener, comprising inter-.

specification.

JOHN DRAHER. ADOLPH'J. KBIEGER. 

